Reviewer: Ladislav Lhotka
Review result: Ready with Issues
**** General comments
- YANG module "ietf-isis-reverse-metric" is in a good shape except for
one issue described below.
- I appreciate the three examples of instance data in appendices (two
in XML representation, one in JSON).
**** Specific comments
- In three places, the module uses "when" expressions with plain
string equality test applied to identityref values, such as:
when "../rt:type = 'isis:isis'"
This is known to be fragile, which can demonstrated on the JSON
example in appendix A.3: It has
"type": "ietf-isis:isis"
which makes the "when" expression false because of the different
prefix, and the corresponding augment doesn't happen.
The above "when" expression should use the XPath function
"derived-from-or-self" that is defined in RFC 7950:
when "derived-from-or-self(../rt:type, 'isis:isis')"
- The "tlv16-reverse-metric" grouping is used only once in the
module. Unless it is expected to be used elsewhere, I would
recommend to remove this grouping and use its contents directly.
- The phrase "YANG XML data" is somewhat misleading, although it is
probably often used in informal discussions. I would suggest "XML
instance data" instead.
**** Nits
- Abstract & Introduction: s/routeing/routing/
- Appending A.3: s/YANG XML data/JSON instance data/
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